Island



(No Model.)

D. SULLIVAN. WATER COIL STEAM GENERATOR.

No. 244,087. Patented July 12,1881.

FIG.E.

INVENTOR.

WITNESSES.

N. PETERS Pholo-Lilhngmphe UNITED STATES PATENT OFFICE.

DANIEL SULLIVAN, 0F LINCOLN, RHODE ISLAND.

WATER-COIL STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 244,087, dated July 12, 1881.

Application filed January 24, 1881. (N0 model.)

To all whom it may concern:

Be it known that I, DANIEL SULLIVAN, of Lincoln,in the county of Providence and State of Rhode Island, have invented certain Improvements in Steam-Coils, of which the following is a specification.

My said invention relates to improved water-coil steamgenerators, economizers, heaters, &c.; and it consists of a new form of construction, whereby the expense of manufacture may be greatly lessened, and by which any part of the coil may be made accessible for repairs, cleaning, &c.

The accompanying drawings are hereby made part of this specification, similar letters of reference thereon indicating corresponding parts.

Heretofore the coil made for the uses referred to has been constructed by bending a continuous tube into spiral forms. This has been necessarily a slow and expensive method of manufacture, and the coil so made has, among others, two important objections,viz: First, in case of a flaw or other imperfection in any part of this continuous tube, so bentinto shape as aforesaid, the whole coil became unfit for use and worthless for the purposes for which it was made; second, in case any part of the continuous tube, so bent into shape as aforesaid, became clogged from any of the causes likely to occur, it has been difficult to locate the trouble, and its removal has been oftentimes impossible, because of the manner of construction. To 0bviate these objections I purpose to make the coil of separate fiues or tubes bent into halfcircles and inserted in parallel plates strongly bolted together, said plates being so perforated at suitable intervals as to receive the ends of these semicircular tubes, and to so place these ends directly opposite each other that there will be a connected and continuous passage through the tubes thus grouped together into a coil.

Figure 1 shows a plan of a coil constructed in this manner. Fig.2is a side elevation,part of one side being cut away to show the inner circles of pipes. Fig. 3 is a perspective view of one of the plates, showing the connected pipes.

at a are the plates aforementioned, and 0 shows thepacking between them.

8 s indicate the bolts or screw and nut by which the plates are secured together.

As shown in the drawings, the coil has three concentric circles of tubing, d e f, reckoning from the inner to the outer. It has also three tiers or layers of these concentric tubes,g h i, reckoning from the lower to the higher. The exact number of these circles and tiers is not material, but may be increased or diminished, as required by circumstances.

In the construction as shown in the drawings it will be observed that on one side of the coil the tiers of tubes g'ht' and also the concentric circles d of are in lines parallel to each other. On the other side of the coil it will be seen that these lines of direction are diagonal, and that at the points and 1 they traverse the spaces at betweenthe circles d e f-a form of construction adapted to make the aperture through the coil connected and con- 70 tinuous. Thus, if water be introduced at the opening I), it will follow the inner circle, d, downward through the pipes t h g,- then crossin g the space m at 70 it enters the middle circle, e, passing upward through the pipes g h i, 7 and across the space on at 1,- then entering the outer circle, f, it follows said circle downward through the layer of pipes i h g, and finds an outlet at 0.

The coil, being constructed as described, may be separated into its constituent parts, when desired, by severing the parallel plates or. a and removing therefrom any one or more of the said semicircular tubes.

In case of defect of any of the tubes,theim- 8 5 perfect can be easily replaced byaperfect one, and when any of them become clogged by any means the trouble may be quickly traced and remedied; for while it would be impracticable to force any effective instrument through the 0 continuous coil as heretofore constructed it is entirely feasible by the usual means to remove an obstruction from the semicircular tubes described and shown.

What I claim as my invention, and desire to 5 secure by LettersPatent, is-

1. A sectional steam-coil in two parts, each part being formed of semicircular tubes, of which both ends are inserted in transverseperforated plates, andthese two parts being united to form the completed coil by bolting or otherwise fastening the parallel plates firmly together, all in the manner and for thepurposes substantially as shown and described.

2. In a steam-generator, a two-part sectional steam-coil, constructed substantially as described, of which one part has concentric rows of tubes arranged in regular order and 5 parallel to each other, both vertically and horizontally, and the tubes in the opposite part have both horizontal and vertical deflections, in order to make a connected and continuous aperture through the coil when the two parts 10 are united, all substantially as set forth.

3. In a sectional steam-coil generator, the

combination of concentric tubes with perforated and transverse parallel plates arranged in such manner that by separating these plates from each other the coil may be divided in twain I 5 and the several parts made accessiblefor cleanin g and for repairs, substantially as described and shown.

DANIEL SULLIVAN. \Vitnesses: THos. P. BARNEFIELD, GEORGE W. BARNEFIELD. 

